There is somehow a flaw in reasoning. Wealthy Munich residents would never live 50km away from their city and employer. :D
There is moderately rich and really rich ;) And I think you are not aware of the distances and prices down there. Augsburg/Landshut/Landsberg/Chiemsee are up to 60km away and people commute daily. Starnberg 20km, Tölz 40km – you're in a holiday region and can commute to work in the city (which I wouldn't do because a long commute would negate all other qualities for me, but there are dozens of people who do exactly that). Nevertheless, this won't get us any further here until the OP has inquired at the relevant authorities what is even possible.